62 PHYSIOLOGICAL CHEMISTRY 



chemical reactions taking place in this experiment are indicated in the following 

 equations : 



(a) 2NaN0 2 +H 2 S04-*2HN0 2 -fNa 2 S0 4 . 



(b) 2KI-hH 2 S0 4 -+2HI+K 2 S0 4 . 



(c) 2 HN0 2 + 2HI-I 2 +2H 2 0+2NO. 



